Saw-gummer.



No. 726,637. A -PATENTEDAPL 28, 1903.1..

B. CHAINE-Y. SAW GUMMEP..

APPLICATION FILED MAB. 12, 1902.

No MODEL. l z sEET-SHEET. 1.v

enga

Witnesses No. 726,637. PATENTED APR. 28;.1903..

E. CHAINEY.V I

YSAW GUMMERr APPLI'OAT/ION FILED MAB.. 12, 1902. No MODEL. A z SHEETS-SHEET 2.

@Wwf/meow UNITED STATESA PATENT OFFICE- EMANUEL Ol-IAINEY, OF FLORENCE, \VISCONSIN.

SAW-GUMlvll-zla.'l

srnclrreArroNxformigg part ef lancers Patent No. 726,637, dated April 28, 1903.

' y Applip'aiba tled'Marth 12, '1902. serial' No. 97,923. (N q model.)

To @ZZ whom it may cancelar: i. A j

Be it knownthat I, EMANUEL CHAINEY, a

citizen of the United States, residing at Flor-` ence, in the county of Florence and State of- Wisconsin, have invented a new and luseful Saw-Gumlner,ofwhichthefollowingisaspeci-I l theweb-plate, and the flange carried by the lication. Y

The present invention relates to saw-gummers or machines for deepening the interdental spaces of saws, and while particularlyir'l-V tended for use on @ressent-saws it will be evil` dent that the invention may be employedl upon saws of other classes.

The primary object of the' invention is to provide a simple machine which may be readily placed in position upon a saw and operatted to quickly cut the spacesbetween the tee h.

One of theimportantffeatures relates to. novel means for controlling the movement' ming device, so that the position of the lat-.1. ter may be changed with respect ,to the saw.

held to meet the various requirements ofthe work.

The construction whichat present is considered preferable is fully illustrated in the accompanying drawings and described in the A kfollowing speciiication, although the invention is not to be limited tothe particular con.-v struction set forth, but may be changed and" modified Within the scope of the-appended claims.

In the drawings, Figure 1 is a view in elevation of oneside of the machine. Fig. 2 is a similar view oi", the other side.- Fig.'3 is a top plan View. Fig. 4 is a vertical longitudinal sectional View. Fig. is a horizontal longitudinal sectional view. Fig. 6 is: a detail perspective view ofY the controlling means for the gnmming device.` Fig. 7 is a detail: perspective view of the lower end of one of the standards.

Similar numerals of reference designate corresponding parts in all the figures of the drawings.

In carrying out the invention a frame is provided, vcom prising a pair of upright standstandard l1 is provided at its upper end with an ear 15,'the'adjacentportion of the web being `also formed intoA an ear 16. 17 is fpivoted to and between the ears 15 and 16 and extends through a guide-opening 18, formed in the standard 10. This bracket is preferably formed of, Vsheet metal, having downturned flanges 19 at its side edges and provided contiguous to its opposite ends with depending bearings 20. In these bearings is journaled a longitudinally-disposed arbor 2l, that extends through the guide-opening 18 to the standard'lO and projects beyond the end of the loracket.--` This end of the bracket is preferably provided with a box' 22, that extends beyond the adjacent bearing 2O and forms a covering to protect the same from the id ust and cuttings. Upon the projecting end of the arbor 2.1 is secured by suitable nuts a grinding or gumming disk 23, which may be of Vany suitablematerial, such as emery. The opposite end ofthe arbor has a longitudinally- A bracket disposed key-seat 24, and apinion 25, mounted.

tudinal movement bythedepending bearing 2.0.and the adjacent ears l5 and 16. An opening 27 is made through the upper end of the standard 1l to permit the longitudinal movement of the arbor.

29, that are journaled upon the offset portion ing with the pinion 25, the other being provided With a suitable handle-crank 30. The angular relation oi the handle-crank with respect to the main frame is provided for the The arbor or shaft andl the gumming-disk are rotated through the medium of intermeshing gear-wheels 28 and y13 of the web, one of these gear-wheels mesh- Y IOO convenience of the operator of the machine.

The braeketand gummingdevice are normally held in raised position by means of a spring 31, mounted upon the inner side of the web,

as shown, and having its free end 32 engaged with the 'under side of the bracket.

The means for controlling the action of the gumming device is as follows: A collar 33 is loosely journaled upon the arbor, but is held against longitudinal movement thereon by means of sleeves 34, located at the opposite ends of the same, and said collar is provided with outstanding pintles 35, which engage in openings 36, made in thelower endsot` astirrup 37, said stirrup being pivotally hung upon a pair of upstanding ears 38, attached to the upper side ot' the bracket. The stirrup is provided with a depending end 39, having a handle 40, that is located on the side of the machine opposite to the handle-crank 30 of the driving mechanism. Acentering-sprng 41, coiled about the pivot 42 of the stirrup, has free terminals 43, which engage on opposite sides of said stirrup and `normally hold it against movement in either direction.

In order to properly position and hold the machine upon a saw, the lower ends of the standards l0 and 11 are provided with sawreceiving slots 44, dividingsaid standards into legs 45, that are arranged to embrace the saw. Clamping devices in the form of cams 4G are journaled upon the lower ends of the standards and are movable across the slots, these clamping devices being connected to an intermediately-disposed handle 47 by means of arms 4S, whereby they may be moved simultaneously. It will be observed that the flanges 14 and the web 13 extend below the upper ends of the saw-receiving slots, and the lower portions of these Iianges and web are provided with vertically-arranged slots 49. A gage-plate 50 is located between standards and has terminal eyes 5l, which receive clamp-bolts 52, that pass through the slots 49. This gage-plate is therefore vertically adjustable and is intended to limit the distance the saw may be placed in the receiving-slots 44. It will also be observed that either end of the gage-plate may be raised orlowered independently of the other end, so that the angular relation of the saw may be changed with respect to the gumming device.

The machine as shown is primarily intended for use upon acrosscut-saw, the saw being placed in ordinary filing-clamps. The machine is then placed upon the saw, which is located in the saw-receiving slots 44, the distance being regulated by means of the gageplate 50. The clamping-cams 46 are then moved into engagement with the saw-blade, thereby securing the machine rigidly in place. The operator then standing with the gumming-disk toward him may grasp the crankhandle of the driving mechanism with his right hand and the controlling-handle 40 with his left. He therefore may move the gumming-disk in three dierent directions. First, by revolving the driving mechanism it will be evident that the disk will be rotated at acomparatively high speed. By depressing the bracket through the medium of the stirrup and against the resistance of the spring 3l the disk will be lowered into engagement with the saw, and in case it is notin exact position by swinging the stirrup 37 back or forth the arbor, and consequently the grinding-disk carried thereby, will be moved longitudinally of the frame, so that the eXact position desired may be readily obtained. As soon as thef-pressure upon the handle 40 is released the arbor will be brought back to its normal position by the centering-spring 4l, and the resistance-spring 3l will raise the bracket and the grinding-disk away from the saw. The machine is then moved to the next tooth, which may be treated in like manner.

The advantages for this structure may be summed up as follows: In the first place the entire machine is comparatively simple, rso that it may be readily operated by one man and can be adjusted to suit the various requirements of the work. Then the machine as a whole does not have to be accurately positioned with respect to each tooth, as the operator may by means of the controlling mechanism for the gumming device adjust the same upon the frame and properly position it with respect to the space between the teeth. The means for clamping the machine upon the saw is very simple and at the same time effective, while the gage-plate, as above described, permits the proper adjustment of the machine, so that the disk will be located at the necessary angle during the cutting operation. As is well known, the curve of the cutting edge of a crosscut-saw changes, and as either end of the gage-plate may be adjusted independently the machine may be adjusted to conform to this curve.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention. will be apparent to those skilled in the art Without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

t l. In a saw-gumming machine, a pivoted bracket, an arbor journaled on the bracket and longitudinally movable thereon, a gumming-disk secured to the arbor, a controlling device pivoted at one end to the bracket and having an intermediate portion engaged with the arbor, and a handle secured to the free end of the controlling device.

2. In a saw-gumming machine, the combination with a suitable support, of a bracket pivoted upon the support, an arbor journaled upon and movable longitudinally with respect to the bracket, a gumming device secured to the arbor, and a stirrup pivotally hung upon the bracket and connected to the arbor.

In a saw-gumming machine, the combi- ICO IIO

nation with a support, of a bracket pivoted thereto, an arbor journaled upon the under side of the bracket and longitudinally movable thereon, a collar mounted upon said arbor, a gumming-disk secured to the arbor, and a controlling device pivoted to the bracket and engaging said collar.

4. In a saw-gumming machine, a frame comprising spaced upright standards and a Webplate connecting the standards, of a bracket pivoted to the frame, an arbor journaled upon the bracket and longitudinally movable thereon, a gumming device carried by the arbor, a pinion mounted against rotatable movement on the arbor but permitting the longitudinal movement of the same, and gearing journaled upon the Web-plate and meshingv with said pinion.

5. In a saw-gumming machine, the combination with a suitable support, of a bracket pivoted to the support, an arbor journaled upon and movable longitudinally with respect to the bracket, a gumming device secured to the arbor, and man ually-operated mechanism for moving the bracket and also moving the arbor longitudinally thereof, said means having separate engagements with the arbor and the bracket, the engagement With the bracket serving to hold the bracket against rotation with the arbor. s

6. In a saw-gumming machine, the combination with a suitable support, of a bracket pivoted upon the support, an arbor journaled upon and movable longitudinally with respect to the bracket, a gumming device secured to the arbor, and controlling means for the gumming` device connected to the arbor, and movably attached to the bracket, being held by such attachment against rotation With the arbor.

7. In a saw-gumming machine, the combination with a suitable support, of a bracket pivoted upon the support, an arbor j ournaled upon and movable longitudinally with respect to the bracket, a gumming device secured to the arbor, and controlling means for the gumming device connected to the arbor, and pivoted to the bracket, being held by its pivot connection against rotation With the arbor.

8. In a saw-gumming machine, the combination with a suitable support, of a bracket pivoted upon the support, an arbor journaled upon and movable longitudinally in either direction with respect to the bracket, a gum-- ming device secured to the arbor, operating mechanism for moving the bracket and the arbor longitudinally upon the same,and yielding means for normally holding the arbor at an intermediate point against longitudinal movement in either direction.

9. In a saw-gumming machine, the combination with a suitable support, of a bracket pivoted upon the support, an arbor journaled upon and movable longitudinally with respect -to the bracket, a gumming device secured to the arbor, a stirrup pivotally hung upon the bracket and connected to the arbor, and a .centering-spring engaging the stirru p to normally hold it against movement.

10. In a saw-gumming machine, the combination with a frame or extension that -is provided with a guide-opening, of a bracket pivoted upon the frame and projecting through the opening, the lower end Wall of said opening constituting a stop to limit the swinging movement ofthe bracket, an arbor journaled upon the bracket and projecting beyond the free end thereof, a gumming device carried by the projecting end of the arbor, driving mechanism mounted upon the frame and connected With the arbor, and a gage arranged to rest upon the saw-teeth and adjustably secured to the frame and movable toward and from the stop formed by the end Wall of the opening.

11. In a saw-gumming machine, the combination with a frame provided with a guideopening having a -wall that constitutes a stop, of a bracketpivoted upon the frame and proj ecting through the guide-opening, being arranged to contact with the stop-Wall thereof, an arbor journaled upon the bracket and projecting through the guide opening of the standard, a gumming devicecarried by the end of the arbor that projects through the guide-opening, means for driving the arbor, and a spring mounted upon the frame on the side of the bracket opposite the gumming device and engaging the bracket to normally 'hold the same against the stop-Wall of the guide-opening.

12. In a saw-gumming machine, the combination with a frame arranged to be placed upon a saw, of a gumming device mounted Vupon the frame, and a substantially horizontal gage-plate adj ustably secured to the frame and vertically movable thereon, said plate being arranged to restupon the upper edge of the saw and being movable toward and from the gumming device.

13. In a saw-gumming machine, the combination with a frame having depending standards provided With saw-receiving slots,'of a gumming device movably mounteduponV theframe, and a substantially horizontal gageplate located between the standards and movable vertically thereon said plate being arranged to rest upon the saw-teeth and limit the distance the saw may be placed in the slots.

14. In a saw-gumming machine, the combination with a frame having depending standards provided With saw-receiving slots, of a gumming device movably mounted upon the frame, flanges located upon the inner sides of the standards and having longitudinallydisposed slots, a gage-plate located'between the standards and movable toward and from the gumming device, and adjusting-bolts se-4 cured to the ends of the gage-plate and movably mounted in the slots of the iianges.

15. In a saw-gumming machine, the combi-` nation with a frame having spaced standards IOO provided with saw-receiving slots, of a gumming device movably mounted on the frame, clamping devices secured to the standards and movable across the slots thereof to clamp a saw placed in said slots, and a connection between the several clamping devices whereby they are movable simultaneously.

16. In a saw-gumming machine, the combination with a frame having spaced standards provided with sawreceiving slots, of a gumming device movably mounted on the frame, clamping-cams journaled upon the standards and movable across the slots thereof, and a handle located between the standards and having connections with the cams to move them simultaneously.

17. In a saw-gumming machine, the combination with spaced standards having saw-receiving slots in their lower ends and guideopenings in their upper ends, of a web-plate connecting the standards, a bracket pivoted upon the webp1ate and projecting through one of the guide-openings, the ends of which constitute stops to limit the movement of the bracket, an arbor journaled upon the bracket and projecting through one of thc guide-openings, said arbor being longitudinally movable upon the bracket, a grinding-disk attached to the projecting end of the arbor, gearing mounted upon the web-plate and having a gear connection with the arbor, clampingcams jonrnaled upon the lower ends of the standards and movable across the saw-receiving slots, and a vertically-adjustable and horizontally-disposed gage-plate mounted upon the web-plate and movable toward and from the bracket, said gage-plate being located in a plane that intersects the saw-receiving slots.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

EMANUEL CHAINEY.

Witnesses:

WV. C. HABERKORN, C. I. HOPKINS. 

